The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2002
Filed:
Mar. 10, 2000
Applicant:
Inventors:
Koji Kuyama, Tottori, JP;
Shigeru Yoshida, Tottori, JP;
Kodo Fukuoka, Tottori, JP;
Mikio Umehara, Tottori, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/06 ; H02K 1/22 ;
U.S. Cl.
CPC ...
H02K 7/06 ; H02K 1/22 ;
Abstract
A motor includes (a) a stator having a stator core wound with a coil, (b) a rotor having a magnet facing the stator core via an annular space and a yoke disposed on an outer wall of the magnet, and (c) an unbalancing weight disposed on an outer wall of the yoke. This structure allows the motor to be small in size, light in weight, thin, flat and to function as a vibrating motor producing maximum vibration at low power consumption. The motor thus contributes to realizing a portable device with a small size, a low weight, and which is operable for many hours.